True running table slide



Feb. 21, 1933. E DAUB 1,898,620

TRUE RUNNING TABLE SLIDE Filed Oct. l2, 1929 y r1. van, n 11.11.111'4 11.1111 :It

INVENTOR Patented Feb. 21, 1933 UNITED `STATES PATENT orFicE l EDWARD nAUnoE Los ANGELES, CALIFORNIA, AssrGNoa To EDNA AjsaNnEaor Los Y ANGELES, cALiFoRNIA y i TRUE RUNNING TABLE SLIDE Application filed October 12, 1929.` Serial No. 399,310.

An object of this invention is to provide a table slide that is adaptedto act directlyand positivelyvwithout lost motion or wobbling to .move two sliding table top sections in opposite directions to exactly the same extent so that in casethe slide is installed with the tabletop sections'meeting at the middle of the table frame', and one of such sections is moved on such frame, such movement in one direction will-be exactly duplicated by' themovement of the other table top section in the other direction.

lAdvantages are, perfectly Vsmooth and even operation and absolute freedom from sticking. e

. -An object is to guard againstdifficulties due to swelling and warping.

Other objects are simplicity, and lightness and cheapness of manufacture and installation.

Another' object is to practically provide against pulling apart or other displacement of parts while the device is attached tothe table,

Another object is to provide a table slide construction that is made upof light castings and stampings ofv furniture y sheet steel mounted on a guide bar that is preferably made of wood.

'A hroadlynew, basic and pioneer feature of the invention is that there are provided in combinationwith eachother a guide bar, slides movable endwise on the guide bar; and spur gears journalledto the guide bar on parallel axes that are in fixed relation to each other.

I have provided in combination, ay guide bar adapted to be fixed to a. support, two racks parallel to the guide har and adapted to be fixed, respectively to the table top sections and two sets of shaft connected gearing carried by the guide bar and operating the racks respectively.

A feature of the invention is that I mount the table top sections on racks that are supL ported by gears which are near the ends of the table so 4that as the table top sections are drawn to extend from the ends of the table frame, the weights of such sections are carried by the gears that operate the racks.

An advantage is that Iy avoid any side pull hold the racks in place on the spur gears that are in mesh with them respectively.

VPreferablyeach ytable is provided with two guide bars including the mechanism vand provision for attaching the device to the frame and the table topsections.

This invention.includes'the parts and combinations ofparts hereinafter particularly describedand claimed.

Other objects, advantages land features of invention may apear from the accompanying drawing, the subjoined detailed description and the appended claims. y y The accompanying drawing illustrates the invention.

Figure l is a side elevationy of a table slide J(cionstructed in accordance: with this invenion.

Fig. 2 is a view of the underside ofthe table slide shown in Fi g. l, all the parts bev ing in set up position.

. Fig; 3 is a section on: line w3, Fig. 2, and showing the slide attached to fragments of a table frame and one of the table top sections. v v

Fig. 4 is a broken-perspective view of one of thel rearfraclrs, detached.'A Y

Fig. 5 is a detached section of the slide on 1 line m5, Figsal vand 2, andshowing a lclip holding parts together for shipping.

Fig. 6 is a top plan view of a table with the .invention applied yand with thetable top sections drawn apart; one of'said sections beingbroken away to expose-the gearing connection of one corner of the installation.

The table slide comprisesl a guide bar l adapted for attachment to a table frame and provided with bearings 2 in'which isf'journalled a shaft 3 having fixed to its ends bevelled gear wheels 4 that are respectively in mesh with the bevelled faces 5 of combination tional racks 8 which 'are preferably stampings of furnitureV sheet steel fstrips of Z shaped cross section havingV perforation's in the form of slots 9 and adapted to mesh 'with the spur gear, and adapted to be secured to the table top sections by screws 11 through l holes 12 in a flange 13 of the rack strip which Preferably Vthe bar 1 and the bearings 2y are Wooden and the bearingsare iiXed to the i bar by screws 18.

The combination` gears 6 are journalled on shafts comprising Ypins 19 fixed in sockets 20 in the guide bar 1, and said combination gear is' anti'JfriCtiOnally separated from the bar by a Washer' 21.

The'uper side of the bar is provided vith a longitudinal groove 22, in which the flange 142of the rack is slidably inserted While the table top securingfi'anges 13 are `mmovably attached' tothe tabletop sections 10, respectively, so that xvh'en'a tabletop section 10 is moved relatively to the table frame 23, to which the guide bar 1v isfi'ed, the spur gears andtheir' shaft will be Vrevolved and the racks ivill becorrespondingly moved end- Wise. Y

Itis understood that the guide bar and the bearing 2 may be made of any suitable materials? but it is at present deemed desirable to make the guide bar and bearings'of vvo'od for cheapness, lightness and ease of manufacture. V

The plain' Z slide stripsQ, correspond to the sectional rackstrips 8, above described, except that the rack structure is eliminated. The strips 8 and 24 are arranged to slide in the saw kerf grooves 22, 22 respectively that extend from end to end of the slide bar.

The slide bars are of various lengths for various lengths of table; the length ofthe Y slide bars for any particular table. depending. upon the Width of the opening provided between' the table top end sections 10,7to accommodate thermaximum number of leaves for which that particular' table is intended.

In practice theV parts will be assembled at the factory in a manner corespcnding to that indicated in the drawing; there being provided a: sheet metal packaging strip 25, having its edges bent over to form grooves 26, into which the edges of the guide strips may be slid when the table slide is assembled as indicated in Fig. 5, thus to hold the parts together in a neat package for storing, transporti ng or marketing. y

`To installV the slides on a table', the workman Will first place the separable table top sections upside down on a flat surface With their n'ieeting ends together, and after re moving the clips 25, from the package assembly shown in Fig. 6, will turn the table slide upside down in the desired position on the table top Wth the slide bar 1 supported by the Z strips and will then fasten to the table top section 10, the flanges which rest thereon.

Then the Workman Will take' thev table frame 28, With its attached skirt 27 and legs 28, and will turn such frame upside down on the slides, and by means'of screws 26, will fasten the frame to the guide bars as indicated in- Fig. 3, and Will then turn the table right lside up,ready for use.

Iv claim: L

1. A table slide comprising a guide bar having a groove along one side thereofv and adapted to be fixed to a support; a bearing fixed to the bar and projecting from the grooved side thereof; a pair of' combined spur and bevel gear Wheels in journalled re-V lation to the bar, mounted adjacent to said bearings respectively; a' shaft journalled in thel bearings parallelV tothe bar.; bevel gears fixed to theshaft and meshing With the bevel gear Wheels respectively; and combination runner racks adapted to be fixedtojthetable top sections, respectively, With their runners in the groove of the bar, and their' racks meslied with' the spurr gears respectively.

2. A table slide comprising a slidebarpro-v vided with a'.A groove along one side, api'n eX- tending from said side of the bar, a-spu'r gear journalledV on the pin, a rack' iange running in the groove and meshing! with th'ej gear, and means forxing the rack to a table top section.

3.- In a table slide, a sheet metal Z strip comprising a v'veb and two flanges, one of its flanges being perforated to form a rack, and its other flange being adapted to b'e fixed to ata-bl'e top section.

4. In a table slide,A a rack comprising a strip andhaving orifices to receive the teeth of a spur gear, there being a series of transverse rack bars between said orifices and also having Va transverse bar of greater Width parallel to, and terminating the series of bars to stop the teeth of the spur gear to prevent endwvise disengagement of therack from the spur gear.

5. In combination, a guidebaradapted to be fixed toy a support, two racks' parallel to the guide bar and adapted to be fixed, respectively, to tivo table top sections, carried directly by the guide bars and two sets of shaft connected bevel 4gearing carried by the guide bar and operating' the racks respectively. k

6.' The combination Wi'tha table frame, of bevel and spur gears `Which are mounted on the frame near the endsI thereof; racks supported by the spur gears, and table top' sections on the racks so that the weight of the table top sections is directly carried bythe spur gears that operate the racks.

reo

7 A device of the character set forth, comprising table top sections, a guide'bar having a groove along one side thereof and adapted to be fixed to a support, shaft connected bevel gearing carried by the guide bar, spur gears and racks in which the weight of the table top sections is directly applied to hold the racks in place on the spur gears that operate the racks. v

In testimony whereof, I have hereunto set my hand at Los Angeles, California, this 28th day o'September 1929.

` 'EDWARD DAUB. 

